diff --git a/gms/gossip_digest.hh b/gms/gossip_digest.hh
index 8c2cddbca6..2486590c03 100644
--- a/gms/gossip_digest.hh
+++ b/gms/gossip_digest.hh
@@ -68,19 +68,19 @@ public:
         , _max_version(version) {
     }
 
-    inet_address get_endpoint() {
+    inet_address get_endpoint() const {
         return _endpoint;
     }
 
-    int32_t get_generation() {
+    int32_t get_generation() const {
         return _generation;
     }
 
-    int32_t get_max_version() {
+    int32_t get_max_version() const {
         return _max_version;
     }
 
-    int32_t compare_to(gossip_digest d) {
+    int32_t compare_to(gossip_digest d) const {
         if (_generation != d.get_generation()) {
             return (_generation - d.get_generation());
         }
diff --git a/gms/gossip_digest_ack.hh b/gms/gossip_digest_ack.hh
index b05ea96a9c..42376af74d 100644
--- a/gms/gossip_digest_ack.hh
+++ b/gms/gossip_digest_ack.hh
@@ -64,11 +64,11 @@ public:
         , _map(std::move(m)) {
     }
 
-    std::vector<gossip_digest> get_gossip_digest_list() {
+    std::vector<gossip_digest> get_gossip_digest_list() const {
         return _digests;
     }
 
-    std::map<inet_address, endpoint_state> get_endpoint_state_map() {
+    std::map<inet_address, endpoint_state> get_endpoint_state_map() const {
         return _map;
     }
 
diff --git a/gms/gossip_digest_syn.hh b/gms/gossip_digest_syn.hh
index 60b6a794d5..92e90fcf90 100644
--- a/gms/gossip_digest_syn.hh
+++ b/gms/gossip_digest_syn.hh
@@ -72,7 +72,7 @@ public:
         return _partioner;
     }
 
-    std::vector<gossip_digest> get_gossip_digests() {
+    std::vector<gossip_digest> get_gossip_digests() const {
         return _digests;
     }
 
diff --git a/gms/heart_beat_state.hh b/gms/heart_beat_state.hh
index 4d5fb99127..52ba3c36f9 100644
--- a/gms/heart_beat_state.hh
+++ b/gms/heart_beat_state.hh
@@ -74,7 +74,7 @@ public:
         _version = version_generator::get_next_version();
     }
 
-    int32_t get_heart_beat_version() {
+    int32_t get_heart_beat_version() const {
         return _version;
     }